mirror of
https://gitlab.com/sortix/sortix.git
synced 2023-02-13 20:55:38 -05:00
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
/*******************************************************************************
|
|
|
|
Copyright(C) Jonas 'Sortie' Termansen 2012.
|
|
|
|
This file is part of Sortix.
|
|
|
|
Sortix is free software: you can redistribute it and/or modify it under the
|
|
terms of the GNU General Public License as published by the Free Software
|
|
Foundation, either version 3 of the License, or (at your option) any later
|
|
version.
|
|
|
|
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
|
details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
Sortix. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
vgatextbuffer.h
|
|
An indexable text buffer with the VGA text mode framebuffer as backend.
|
|
|
|
*******************************************************************************/
|
|
|
|
#ifndef SORTIX_VGATEXTBUFFER_H
|
|
#define SORTIX_VGATEXTBUFFER_H
|
|
|
|
#include <sortix/kernel/textbuffer.h>
|
|
|
|
namespace Sortix {
|
|
|
|
class VGATextBuffer : public TextBuffer
|
|
{
|
|
public:
|
|
VGATextBuffer(uint16_t* vga, uint16_t* attr, size_t width, size_t height);
|
|
virtual ~VGATextBuffer();
|
|
virtual size_t Width() const;
|
|
virtual size_t Height() const;
|
|
virtual TextChar GetChar(TextPos pos) const;
|
|
virtual void SetChar(TextPos pos, TextChar c);
|
|
virtual uint16_t GetCharAttr(TextPos pos) const ;
|
|
virtual void SetCharAttr(TextPos pos, uint16_t attrval);
|
|
virtual void Scroll(ssize_t off, TextChar fillwith);
|
|
virtual void Move(TextPos to, TextPos from, size_t numchars);
|
|
virtual void Fill(TextPos from, TextPos to, TextChar fillwith,
|
|
uint16_t fillattr);
|
|
virtual bool GetCursorEnabled() const;
|
|
virtual void SetCursorEnabled(bool enablecursor);
|
|
virtual TextPos GetCursorPos() const;
|
|
virtual void SetCursorPos(TextPos cursorpos);
|
|
|
|
private:
|
|
bool UsablePosition(TextPos pos) const;
|
|
TextPos CropPosition(TextPos pos) const;
|
|
size_t OffsetOfPos(TextPos pos) const;
|
|
void UpdateCursor();
|
|
|
|
private:
|
|
uint16_t* vga;
|
|
uint16_t* attr;
|
|
size_t width;
|
|
size_t height;
|
|
TextPos cursorpos;
|
|
bool cursorenabled;
|
|
|
|
};
|
|
|
|
} // namespace Sortix
|
|
|
|
#endif
|